Upgrade checkout action to v7

test/release_workflow_test.rb

@@ -6,6 +6,7 @@ require "yaml"
 class ReleaseWorkflowTest < Minitest::Test
   ROOT = File.expand_path("..", __dir__)
   WORKFLOW_PATH = File.join(ROOT, ".github", "workflows", "release.yml")
+  SETUP_RUBY_ACTION = "ruby/setup-ruby@003a5c4d8d6321bd302e38f6f0ec593f77f06600"
   RELEASE_GEM_ACTION = "rubygems/release-gem@052cc82692552de3ef2b81fd670e41d13cba8092"
 
   def workflow
@@ -28,6 +29,9 @@ class ReleaseWorkflowTest < Minitest::Test
     )
 
     steps = push_job.fetch("steps")
+    setup_ruby = steps.find { |step| step["uses"] == SETUP_RUBY_ACTION }
+
+    assert_equal "4.0", setup_ruby.dig("with", "ruby-version")
     assert_equal 1, steps.count { |step| step["uses"] == RELEASE_GEM_ACTION }
     refute steps.any? { |step| step.fetch("run", "").match?(/\bgem\s+push\b/) }
   end

test/workflow_contract_test.rb

@@ -8,7 +8,7 @@ class WorkflowContractTest < Minitest::Test
   WORKFLOW_DIRECTORY = File.join(ROOT, ".github", "workflows")
   TEST_WORKFLOW_PATH = File.join(WORKFLOW_DIRECTORY, "test.yml")
   ACTION_PINS = {
-    "actions/checkout" => "93cb6efe18208431cddfb8368fd83d5badbf9bfd",
+    "actions/checkout" => "9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0",
     "ruby/setup-ruby" => "003a5c4d8d6321bd302e38f6f0ec593f77f06600",
     "rubygems/release-gem" => "052cc82692552de3ef2b81fd670e41d13cba8092"
   }.freeze